diff --git a/site/app_controller.php b/site/app_controller.php
index 7b39f5e..93e5135 100644
--- a/site/app_controller.php
+++ b/site/app_controller.php
@@ -111,7 +111,7 @@ class AppController extends Controller {
     $start = $limit*$page - $limit;
 
     // Grab the actual records taking pagination into account
-    $query['group'] = $model->alias.'.'.$model->primaryKey;
+    $query['group'] = $this->jqGridDataGroup($params, $model);
     $query['order'] = $this->jqGridDataOrder($params, $model,
 					     isset($params['sidx']) ? $params['sidx'] : null,
 					     isset($params['sord']) ? $params['sord'] : null);
@@ -258,6 +258,10 @@ class AppController extends Controller {
     return null;
   }
 
+  function jqGridDataGroup(&$params, &$model) {
+    return $model->alias.'.'.$model->primaryKey;
+  }
+
   function jqGridDataOrder(&$params, &$model, $index, $direction) {
     return $index ? array($index .' '. $direction) : null;
   }